Norcoustic intumescent acrylic sealant (NOR115) is a one part, emulsion acrylic based intumescent sealant that provides excellent sound reduction properties coupled with a 4 hour fire resistance compliant with BS 476: Part 22: 1987.
It is permanently flexible and can be installed in up to 50mm joints due to its excellent slump resistance. Nor-coustic dries to a flexible, smooth, overpaintable surface. It is formulated to be Halogen free.
One tube of Nor-coustic intumescent acrylic is sufficient to produce approximately 1 metre using a 20mm x 15mm bead. Skinning time is between 15 minutes up to 1 hour depending on the conditions, with a cure time of 5 to 15 days for a 20mm x 15mm bead.
Screen colour may differ from actual product colour. All technical information is given as guidance only. Due to the technical nature of our products they are designed to be installed by a professional.